Finding the Fourth Proportional to 199,968.11, 299,952.47 and 80,079.05
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Solution
The fourth proportional to 199,968.11, 299,952.47 and 80,079.05 is: 120,118.70
Step by Step Solution
- Step 1: Write the proportion equation
199,968.11 : 299,952.47 = 80,079.05 : x - Step 2: Convert to fraction form
199,968.11/299,952.47 = 80,079.05/x - Step 3: Cross multiply
199,968.11x = 299,952.47 × 80,079.05 - Step 4: Simplify right side
199,968.11x = 24,019,908,842.75 - Step 5: Solve for x
x = 24,019,908,842.75/199,968.11 - Step 6: Final answer
x = 120,118.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.